Full-effect vacuum concentration and evaporation device
By using a combination of pervaporation components and plate heat exchangers, the high energy consumption and low thermal efficiency of existing evaporator equipment are solved, achieving low-energy and high-efficiency steam production and thermal energy recycling.
Patent Information
- Application Number
- CN202422883521.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2034-11-26
AI Technical Summary
Existing evaporator equipment has a simple structure, high energy consumption, low thermal energy utilization efficiency, and cannot achieve complete thermal energy recycling.
Design an all-in-one vacuum concentration and evaporation device, which connects a raw water tank, a pervaporation component, a heating cylinder, an evaporation cylinder, a steam-water separator, a condenser, and a concentrate storage tank through pipelines. The device utilizes the membrane structure of the pervaporation component to generate steam and recycle heat energy, and employs a plate heat exchanger to achieve multiple cycles of heat energy recycling.
It achieves low-energy-consumption high-temperature steam production, reducing energy consumption and usage costs, and the thermal energy is completely recycled within the device, avoiding environmental pollution.
Smart Images
Figure CN223788337U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of concentration evaporation, and relates to a full-effect vacuum concentration evaporation device. BACKGROUND
[0002] From the initial simple distiller to the modern high-efficiency evaporator, the evaporator has experienced a long development process. The distillation technology can be traced back to ancient Egypt, but until the 18th century, there was a relatively complete distillation theory. In the early 19th century, the distillation technology was further developed, but the structure of the distillation equipment was still relatively simple. In the early 20th century, various new evaporators appeared, such as heat pump evaporators, thermal decomposition evaporators, and compression evaporators. In the 1960s, high-efficiency and energy-saving evaporators such as multi-effect evaporators and membrane evaporators appeared. Today, evaporators have been widely used in various fields, and people are constantly pursuing more efficient and energy-saving evaporator equipment.
[0003] Therefore, a full-effect vacuum concentration evaporation device is designed to overcome the above problems. CONTENT OF THE UTILITY MODEL
[0004] The utility model aims at overcoming the deficiencies of the prior art, and provides a full-effect vacuum concentration evaporation device which has a simple and reasonable structure, low energy consumption and use cost, and can fully utilize heat energy.
[0005] The utility model is realized through the following technical scheme: a full-effect vacuum concentration evaporation device, which comprises a raw water tank, a permeation evaporation assembly, a heating cylinder, an evaporation cylinder, a steam-water separator, a condenser and a concentrated liquid storage tank, and is connected through pipelines. The liquid outlet of the raw water tank is connected with the liquid inlet of the permeation evaporation assembly through a first pipeline provided with a first water pump. The concentrated liquid outlet of the permeation evaporation assembly is connected with the liquid return outlet of the raw water tank through a second pipeline provided with a first plate heat exchanger. The liquid outlet A on the permeation evaporation assembly is also connected with the steam inlet of the heating cylinder through a third pipeline provided with a vacuum pump. The steam outlet and the raw liquid outlet A of the heating cylinder are connected with the raw liquid inlet of the evaporation cylinder and the steam inlet of the evaporation cylinder through pipelines respectively. The water return outlet and the steam outlet of the evaporation cylinder are connected with the water outlet and the inlet of the steam-water separator through pipelines respectively. The outlet of the steam-water separator is connected with the heat source inlet of the condenser through a pipeline. The cold source outlet of the condenser is connected with the first plate heat exchanger on the second pipeline. The cold source inlet and the heat source outlet of the condenser are connected with the inlet of the concentrated liquid storage tank through a second plate heat exchanger respectively. The liquid outlet B of the concentrated liquid storage tank is connected with an external collecting device for collection.
[0006] As preferred: the first plate heat exchanger is connected with the second plate heat exchanger through a connecting pipeline with a second water pump, so as to realize circulation between the raw water tank, the permeation evaporation assembly, the heating cylinder, the evaporation cylinder, the steam-water separator, the condenser and the concentrated liquid storage tank.
[0007] As preferred: the raw liquid outlet B and the condensed water outlet of the evaporation cylinder are connected with the return water inlet of the heating cylinder and the inlet of the concentrated liquid storage tank through the fourth pipeline and the fifth pipeline respectively, so as to realize circulation between the evaporation cylinder and the heating cylinder and between the evaporation cylinder and the raw water tank.
[0008] As preferred: the fifth pipeline of the evaporation cylinder is further externally connected with a coil pipe, and valves are arranged at both ends of the coil pipe respectively, and the fifth pipeline is further connected with the condensed water outlet of the heating cylinder through a sixth pipeline with a valve.
[0009] As preferred: the heating cylinder is further provided with a raw liquid inlet, a pressure relief port and a blowdown port respectively, wherein the pressure relief port prevents excessive pressure, and the blowdown port discharges accumulated liquid inside the equipment after the equipment is stopped.
[0010] As preferred: valves are arranged at the condensed water outlet and the coil pipe of the fifth pipeline.
[0011] As preferred: the permeation evaporation assembly is formed by bonding a plurality of membrane sheets.
[0012] The beneficial effects of the present application are as follows:
[0013] The full-effect vacuum concentration evaporation device has simple overall structure, can generate high-temperature steam and low-temperature cold liquid through evaporation, thus does not pollute the environment and has extremely low energy consumption, the high-temperature steam generated by the device can be repeatedly used inside the device, and the low-temperature cold liquid can continuously exchange heat with the condensed steam in the circulation process inside the device, so that complete recycling of heat energy inside the device is realized. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the present application. DETAILED DESCRIPTION
[0015] In order to enable those skilled in the art to more clearly understand the purpose, technical scheme and advantages of the present application, the present application is further described below in conjunction with the drawings and examples.
[0016] In the description of the utility model, it is understood that the orientation or position relation indicated by the terms such as ''up'', ''down'', ''left'', ''right'', ''inner'', ''outer'', ''horizontal direction'', ''vertical direction'' is the orientation or position relation based on the orientation or position relation shown in the drawings, and is only for the convenience of describing the utility model, and does not indicate or imply that the device or element indicated must have a particular orientation, so it cannot be understood as a limitation on the utility model.
[0017] The utility model will be described in detail in connection with the drawings: as Figure 1 As shown in the figure, a kind of full-effect vacuum concentration evaporator, including raw water tank 1, permeation evaporation subassembly 2, heating cylinder 3, evaporation cylinder 4, steam-water separator 5, condenser 6 and concentrated liquid storage tank 7, between by pipeline connection, the liquid outlet 8 of raw water tank 1 is connected by the first pipeline with the liquid inlet 10 of permeation evaporation subassembly 2 with first water pump 9, the concentrated liquid port 42 of permeation evaporation subassembly 2 is connected by the second pipeline with the return liquid port 46 of raw water tank 1 with first plate heat exchanger 43, its permeation evaporation subassembly 2 on liquid outlet A11 still be connected by the third pipeline with the steam inlet 13 of heating cylinder 3 with vacuum pump 12, the steam outlet 16 of heating cylinder 3, raw liquid outlet A15 are connected by pipeline with evaporation cylinder raw liquid inlet 21 and evaporation cylinder steam inlet 22 respectively, the return water port 25 and steam port 26 of evaporation cylinder 4 are connected by pipeline with the drain port 28, inlet 27 of steam-water separator 5 respectively, the outlet 29 of steam-water separator 5 is connected by pipeline with the heat source inlet 30 of condenser 6 heat source, and the cold source outlet 31 of condenser 6 is connected with the first plate heat exchanger 43 on the second pipeline, and the cold source inlet 32 of condenser 6, heat source outlet 33 are connected with concentrated liquid storage tank inlet 35 by second plate heat exchanger 34 respectively, and the liquid outlet B36 of concentrated liquid storage tank 7 is connected with the collecting device outside for collecting.Wherein, permeation evaporation subassembly 2 is formed by a plurality of diaphragms.
[0018] The first plate heat exchanger 43 and the second plate heat exchanger 34 are connected by the connecting pipeline 41 with second water pump 37, to realize the circulation between raw water tank 1, permeation evaporation subassembly 2, heating cylinder 3, evaporation cylinder 4, steam-water separator 5, condenser 6 and concentrated liquid storage tank 7.
[0019] The raw liquid outlet B23 of evaporation cylinder 4, condensate outlet 24 are connected with the return water port 18 of heating cylinder and concentrated liquid storage tank inlet 35 by fourth pipeline 50, fifth pipeline 51 respectively, to realize the circulation between evaporation cylinder 4 and heating cylinder 3 and evaporation cylinder 4 and raw water tank 1.
[0020] The fifth pipeline 51 of the evaporation cylinder 4 is also externally connected with a coil pipe 40, and valve A 39 and valve B 41 are respectively arranged at both ends of the coil pipe 40, and the fifth pipeline 51 is also connected with the heating cylinder condensate water outlet 17 through a sixth pipeline 52 with a valve.
[0021] The heating cylinder 3 is also respectively provided with a heating cylinder raw liquid inlet 14, a pressure relief port 19 and a blowdown port 20, wherein the pressure relief port 19 prevents excessive pressure, and the blowdown port 20 discharges internal liquid accumulation in the equipment after the equipment is stopped.
[0022] Valve C 45 and valve D 38 are respectively arranged at the fifth pipeline 51 near the condensate water outlet 24 and at the coil pipe 40.
[0023] The permeation evaporation assembly in the equipment is formed by bonding a plurality of conventional membranes or modified membrane materials, and the whole is in a sealed state relative to the outside, and the inside can be allowed to flow with liquid. The membrane material surface is not easy to permeate liquid, but is easy to pass through gas. Therefore, when the liquid is distributed on the membrane material surface, part of the liquid is vaporized under the pressure and the physical properties of the membrane material surface, so that the steam permeates from the gap between the membrane materials to the other side of the membrane material. The steam carries away the heat in the liquid. The equipment compresses the steam with heat to increase the temperature of the steam. The heat steam is used as a heat source supply. The heat steam is used to operate the heating cylinder and the evaporation cylinder. The produced liquid steam is condensed and heat exchanged to obtain concentrated liquid. The converted heat energy is heat exchanged by a plate heat exchanger, so that the heat energy is recycled to the system, thereby achieving the operation of the whole equipment.
[0024] The working process of the utility model is as follows:
[0025] The raw water tank 1 enters the permeate evaporation assembly 2 through the first water pump 9 from the raw water tank outlet 8 to the permeate evaporation assembly inlet 10, and then returns to the raw water tank 1 from the raw water tank return port 36 after heat exchange through the plate heat exchanger 43 from the permeate evaporation assembly concentrated liquid port 42. The permeate evaporation assembly 2 produces steam from the permeate evaporation assembly liquid outlet A11, which is pumped into the heating cylinder steam inlet 13 of the heating cylinder 3 by the vacuum pump 12 for heating, and then enters the evaporation cylinder steam inlet 22 from the heating cylinder steam outlet 16 for heating. The condensed water in it is discharged from the heating cylinder condensed water outlet 17 and the evaporation cylinder condensed water outlet 24, and is combined through the valve 44 and the valve C45. Opening the valve A39 and the valve B41 makes it pass through the coil pipe 40 and exchange heat with the outdoor, and then returns to the raw water tank 1 through the raw water tank return port 35 for circulation. The pressure relief port 19 of the heating cylinder 3 prevents excessive pressure, and the blowdown port 20 discharges the accumulated liquid inside the equipment after the equipment is stopped. The raw liquid enters the heating cylinder 3 through the heating cylinder raw liquid inlet 14 for heating, and the heated raw liquid enters the evaporation cylinder 4 from the heating cylinder raw liquid outlet A15 to the evaporation cylinder raw liquid inlet 21 for heating and evaporation. The raw liquid returns to the heating cylinder 3 for circulation from the evaporation cylinder raw liquid outlet B23 to the heating cylinder return port 18. The steam produced in the evaporation cylinder 4 enters the steam-water separator 5 from the evaporation cylinder steam port 26 to the steam-water separator inlet 27 for gas-liquid separation. The accumulated liquid produced therein returns to the evaporation cylinder 4 for re-evaporation from the steam-water separator drain port 28 to the evaporation cylinder return port 25. The steam separated in the steam-water separator 5 enters the condenser 6 from the steam-water separator steam outlet 29 to the condenser heat source inlet 30 for heat exchange and condensation. Then it enters the second plate heat exchanger 34 from the condenser heat source outlet 33 for secondary heat exchange to cool the condensed liquid. Then the concentrated liquid storage tank inlet 35 enters the concentrated liquid storage tank 7. The produced liquid in the concentrated liquid storage tank 7 can be obtained through the concentrated liquid storage tank liquid outlet B36. The cooling water for heat exchange first undergoes first low-temperature heat exchange through the plate heat exchanger 34, and then undergoes second high-temperature heat exchange through the condenser cold source inlet 32 into the condenser 6. Then it exchanges heat with the concentrated liquid of the permeate evaporation assembly concentrated liquid port 42 through the condenser cold source outlet 31 to the first plate heat exchanger 43, and finally returns to the second plate heat exchanger 34 for circulation through the water pump 37.
[0026] Open the first water pump 9, and the liquid enters the permeate evaporation assembly 2 from the raw water tank 1 for circulation to produce steam. Then open the vacuum pump 12 to make the steam enter the steam end of the heating cylinder 3 and the evaporation cylinder 4. The raw liquid that needs to be concentrated enters the heating cylinder 3 through the heating cylinder inlet 19, and is heated to enter the evaporation cylinder 4 for secondary heating and evaporation. The steam produced therein passes through the steam-water separator 5, and the separated liquid returns to the heating cylinder 4 for re-heating and evaporation. The gas goes to the condenser 6 for primary heat exchange and condensation. The condensed liquid is subjected to secondary heat exchange through the second plate heat exchanger 34 to produce concentrated liquid, which is pumped into the concentrated liquid storage tank 7.
[0027] The utility model discloses whole simple structure can produce high temperature steam and low temperature cold liquid with low energy consumption, reduce energy consumption and use cost, and the heat energy in the device can be completely utilized in the circulating process.
[0028] The specific embodiments described herein are merely illustrative of the principles of the utility model and its effects, and are not intended to limit the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical concept disclosed by the utility model should be covered by the claims of the utility model.
Claims
1. A full-efficiency vacuum concentration and evaporation device, comprising a raw water tank (1), a pervaporation assembly (2), a heating cylinder (3), an evaporation cylinder (4), a vapor-water separator (5), a condenser (6), and a concentrate storage tank (7), connected by pipelines, characterized in that: The liquid outlet (8) of the raw water tank (1) is connected with the liquid inlet (10) of the permeation evaporation assembly (2) through a first pipeline with a first water pump (9), the concentrated liquid outlet (42) of the permeation evaporation assembly (2) is connected with the liquid return outlet (46) of the raw water tank (1) through a second pipeline with a first plate heat exchanger (43), the liquid outlet A (11) of the permeation evaporation assembly (2) is further connected with the steam inlet (13) of the heating cylinder (3) through a third pipeline with a vacuum pump (12), the steam outlet (16) and the raw liquid outlet A (15) of the heating cylinder (3) are respectively connected with the evaporation cylinder raw liquid inlet (21) and the evaporation cylinder steam inlet (22) through pipelines, the water return outlet (25) and the steam outlet (26) of the evaporation cylinder (4) are respectively connected with the water outlet (28) and the inlet (27) of the steam-water separator (5) through pipelines, the outlet (29) of the steam-water separator (5) is connected with the heat source inlet (30) of the condenser (6) through a pipeline, the cold source outlet (31) of the condenser (6) is connected with the first plate heat exchanger (43) on the second pipeline, the cold source inlet (32) and the heat source outlet (33) of the condenser (6) are respectively connected with the concentrated liquid storage tank inlet (35) through a second plate heat exchanger (34), and the liquid outlet B (36) of the concentrated liquid storage tank (7) is connected with an external collecting device for collection.
2. The full-effect vacuum concentration evaporation apparatus according to claim 1, characterized in that: The first plate heat exchanger (43) and the second plate heat exchanger (34) are connected through a connecting pipeline (41) with a second water pump (37) to realize the circulation among the raw water tank (1), the permeation evaporation assembly (2), the heating cylinder (3), the evaporation cylinder (4), the steam-water separator (5), the condenser (6) and the concentrated liquid storage tank (7).
3. The full-effect vacuum concentration evaporation apparatus according to claim 2, characterized in that: The raw liquid outlet B (23) and the condensed water outlet (24) of the evaporation cylinder (4) are respectively connected with the heating cylinder water return outlet (18) and the concentrated liquid storage tank inlet (35) through a fourth pipeline (50) and a fifth pipeline (51) to realize the circulation between the evaporation cylinder (4) and the heating cylinder (3) and between the evaporation cylinder (4) and the raw water tank (1).
4. The full-effect vacuum concentration evaporation apparatus according to claim 3, characterized in that: The fifth pipeline (51) of the evaporation cylinder (4) is further externally connected with a coil pipe (40), and valves are respectively arranged at both ends of the coil pipe (40), and the fifth pipeline (51) is further connected with the heating cylinder condensed water outlet (17) through a sixth pipeline (52) with a valve.
5. The full-effect vacuum concentration evaporation apparatus according to claim 4, characterized in that: The heating cylinder (3) is further respectively provided with a heating cylinder raw liquid inlet (14), a pressure relief outlet (19) and a blowdown outlet (20), wherein the pressure relief outlet (19) prevents excessive pressure, and the blowdown outlet (20) discharges the accumulated liquid in the equipment after the equipment is stopped.
6. The full-effect vacuum concentration evaporation apparatus according to claim 5, characterized in that: Valves are arranged at the fifth pipeline (51) close to the condensed water outlet (24) and at the coil pipe (40).
7. The full-effect vacuum concentration evaporation apparatus according to claim 1, characterized in that: The permeation evaporation assembly (2) is formed by bonding a plurality of diaphragms.